DOWNHOLE DATA TRANSMISSION SYSTEM
First Claim
1. A plurality of drill pipes, each drill pipe comprising;
- a first inductive coupler comprising an Archimedean coil inserted in a non-electrically conductive core, detachably assembled within a first groove in a first end of the drill pipe, and a second inductive coupler comprising a second Archimedean coil inserted in a second non-electrically conductive core, detachably assembled within a second groove in a second end of the drill pipe, the first and second inductive couplers in electrical communication;
wherein the first inductive coupler at the first end of one of the plurality of drill pipes is cooperatively arranged to be in magnetic, but not in electrical communication with the second inductive coupler at the second end of another of the plurality of drill pipes.
8 Assignments
0 Petitions
Accused Products
Abstract
A system for transmitting data through a string of downhole components. In one aspect, the system includes first and second magnetically conductive, electrically insulating elements at both ends of the component. Each element includes a first U-shaped trough with a bottom, first and second sides and an opening between the two sides. Electrically conducting coils are located in each trough. An electrical conductor connects the coils in each component. In operation, a varying current applied to a first coil in one component generates a varying magnetic field in the first magnetically conductive, electrically insulating element, which varying magnetic field is conducted to and thereby produces a varying magnetic field in the second magnetically conductive, electrically insulating element of a connected component, which magnetic field thereby generates a varying electrical current in the second coil in the connected component.
239 Citations
32 Claims
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1. A plurality of drill pipes, each drill pipe comprising;
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a first inductive coupler comprising an Archimedean coil inserted in a non-electrically conductive core, detachably assembled within a first groove in a first end of the drill pipe, and a second inductive coupler comprising a second Archimedean coil inserted in a second non-electrically conductive core, detachably assembled within a second groove in a second end of the drill pipe, the first and second inductive couplers in electrical communication;
wherein the first inductive coupler at the first end of one of the plurality of drill pipes is cooperatively arranged to be in magnetic, but not in electrical communication with the second inductive coupler at the second end of another of the plurality of drill pipes. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A plurality of remotely powered inductive couplers for use across a plurality of joints, each joint comprising;
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a tube with first and second ends, a first one of the plurality of inductive couplers comprising a first Archimedean coil inserted in a non-electrically conductive core and detachably assembled within a first groove in the first end of the tube, and a second one of the plurality of inductive couplers inductive couplers comprising a second Archimedean coil inserted in a second non-electrically conductive core and detachably assembled within a second groove in the second end of the tube, the first and second ones of the plurality of inductive couplers in electrical communication;
wherein the first one of the plurality of inductive couplers at the first end of one of said joints is cooperatively arranged to be in magnetic, but not in electrical communication with the second one of the plurality of inductive couplers at the second end of another of said joints. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32)
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Specification